RE: [PATCH net-next v2 2/2] r8152: set bp in bulk

[Hayes Wang]

Andrew Lunn <andrew@xxxxxxx>
> Sent: Wednesday, July 26, 2023 4:39 PM
[...]
> >       /* wait 3 ms to make sure the firmware is stopped */
> >       usleep_range(3000, 6000);
> 
> How much time do you save compared to this 3ms - 6ms sleep?

I think it depends on the CPU and the USB host controller.
Take the PC produced this year for example, I think it saves less than 3ms normally.
However, I think saving the number of control transfer is better for both software and hardware.

Best Regards,
Hayes